BQ25606RGER 3A Fast Charger IC with 3.9V-14V Input I2C Control 30V OVP NVDC Power Path 3mm×3mm QFN 92% Efficiency Integrated MOSFETs & Thermal Regulation

BQ25606RGER 3A Fast Charger IC with 3.9V-14V Input I2C Control 30V OVP NVDC Power Path 3mm×3mm QFN 92% Efficiency Integrated MOSFETs & Thermal Regulation

Features

• High-efficiency, 1.5-MHz, synchronous switch mode buck charger

– 92% charge efficiency at 2-A from 5-V input

– Optimized for USB voltage input (5 V)

• Supports USB On-The-Go (OTG)

– Boost converter with up to 1.2-A output

– 92% boost efficiency at 1-A output

– Accurate constant current (CC) limit

– Soft-start up to 500-µF capacitive load

– Output short circuit protection

• Single input to support USB input and high voltage adapters

– Support 3.9-V to 13.5-V input voltage range with 22-V absolute maximum input voltage rating

– Maximum power tracking by input voltage limit up to 4.6 V (VINDPM)

– VINDPM threshold automatically tracks battery voltage

– Auto detect USB SDP, DCP and non-standard adaptors

• High battery discharge efficiency with 19.5-mΩ battery discharge MOSFET

• Narrow VDC (NVDC) power path management

– Instant-on works with no battery or deeply discharged battery

– Ideal diode operation in battery supplement mode

• High integration includes all MOSFETs, current sensing and loop compensation

• 58-µA low battery leakage current with system voltage standby

• High accuracy

– ±0.5% charge voltage regulation

– ±6% at 1.2-A and 1.8-A charge current regulation

– ±5% at 0.5-A, 1.2-A and 1.8-A input current regulation

• Safety-Related Certification:

– IEC 62368-1 CB Certification

Applications

• EPOS, Portable speakers

• Mobile phone accessory

• Medical equipment

Description

The BQ25606 is a highly-integrated standalone 3.0 A switch-mode battery charge management and system power path management device for single cell Li-ion and Li-polymer batteries. The solution is highly integrated with input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time, and extends battery life during discharging phase.

INFORMATION

Drawing

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